Images of NGC 7094 and similar planetary nebulae exhibit intricate filamentary structure
that earns them the fittingly descriptive name of Galactic Soccer Balls or Galactic Footballs, the latter in areas of the world where soccer is more commonly referred to as football.
Any open-cell or filamentary structure
like textiles, fleece, carpet, or foam with a suitable flow resistance absorbs sound by transforming the acoustical energy into friction energy inside of the material.
This new composite image includes a wide-field view from an astrophotographer that shows the spectacular filamentary structure
of IC 443.
Our previous measurement campaigns have indicated extensive filamentary structure
in tracer profiles and in most cases it is clear that the filaments deviate from a background profile.
Shakhatre, "Filamentary structure
of the pinch column in plasma focus discharges," Physics Letters A, vol.
FVW 172.8+1.5 is an HII complex composed of Sharpless HII regions and OB associations in the Perseus arm with individual objects organized along a large (~7-4 deg) filamentary structure
, the morphology of which has been compared to a bow tie .
In his wonderful drawings he presented not only the basic morphological features like multiple umbrae, light bridges, and penumbral filamentary structure
, but also "knots" in bright penumbral filaments (penumbral grains) and internal structure of light bridges.
The wollastonite produced by this company under the brand name "Fengjiashan" is world-renowned for its unique filamentary structure
and fine physical and chemical performance, and is competitive with the wollastonite produced in India and the U.S.
The filamentary structure
can range from 0.05-2.5 dtex and can be smooth or crimped, depending on the end use.
They call this mechanism "cosmic web stripping", since it is the pancake and filamentary structure
of the cosmos that is responsible for depleting the dwarfs' gas supply.
The nebula has a knotty and filamentary structure
surrounding bluish lobes.
One wave moved outward to produce the filamentary structure
that appears green in visible light, and the other moved inward, producing a bubble of hot, X-ray-emitting gas (blue).